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Part A Three identical very dense masses of 3500 kg each are placed on the x axis. One mass is at :21 =-140 cm , one is at the origin, and one is at a = 430 cm What is the magnitude of the net gravitational force grav on the mass at the origin due to the other two masses? Take the gravitational constant to be G = 6.67x10-" N.mn/kg? Express your answer in newtons to three significant figures. View Available Hints) EVO AXO ? VxVx * 1X1 x 10" powe Fyr - 4.00. 10-4 N Submit Previous Answers X Incorrect; Try Again; 3 attempts remaining Although the two masses not at the origin are identical, they are not the same distance from the origin, so the Part B What is the direction of the net gravitational force on the mass at the origin due to the other two masses? +x direction O-X direction Submit Request Answer